{"product_id":"kb-performance-3-5-8-big-bore-piston-kit-std-mcs-944683","title":"KB Performance, 3-5\/8\" big bore piston kit. STD","description":"\u003cp class=\"bb-fitment\"\u003e\u003cstrong\u003ePast op:\u003c\/strong\u003e 48-84 Big Twin with 3-5\/8 big bore cylinders and strokes from 4-1\/4\" to 4-3\/4\" (88\" to 98\" engines)\u003c\/p\u003e\u003cp\u003e3-5\/8\" big bore piston set. Used with 3 5\/8\" big bore cylinders with 5.330\" (stock) to 5.530\" (+.200\") length.\u003cbr\u003eUse with 4-1\/4\" stock stroke (88\"), 4-1\/2\" (93\"), 4-5\/8\" (96\") to 4-3\/4\" (98\") stroker flywheels. \u003cbr\u003e10.0:1 CR. Piston weight 385gr. Piston pin weight 97gr. \u003cbr\u003eHead type: Dome \/ Dome -57cc. \u003cbr\u003eCompression height 1.285\" \/ Bore 3.625\" (3 5\/8\"). \u003cbr\u003eStroke 4.250\" to 4.750\" (4-1\/4\" to 4-3\/4\"). \u003cbr\u003eRod length 7.440\" \/ Cyl. length 5.330\" (Std) to 5.530\" (+.200\"). \u003cbr\u003eComes with T6 heat treated 390 Hypereutectic cast pistons with 16% silicone levels which enables running a very tight clearance for longevity and hardly any piston noise. \u003cbr\u003e\u003cbr\u003eNote: Top compression ring will need additional clearance. See instructions.\u003cbr\u003eNote: 5.330\" cylinders can be used with stock 4-1\/4\" stroke. Longer strokes require correct length longer cylinders or stroker plates to achieve the desired compression ratio. \u003cbr\u003eNote: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation.\u003c\/p\u003e","brand":"KB Performance Piston","offers":[{"title":"Default Title","offer_id":59226567934326,"sku":"MCS-944683","price":389.32,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/6298\/9430\/files\/944683k.jpg?v=1793624195","url":"https:\/\/www.blue-bull.nl\/products\/kb-performance-3-5-8-big-bore-piston-kit-std-mcs-944683","provider":"Blue Bull","version":"1.0","type":"link"}